Unity使用现有点制作曲线

Question

我找到了下面的类，它接收一个Vector3数组点，并返回一个新点的Vector3数组来制作一条曲线。您可以在以下屏幕截图中看到结果，其中多维数据集是原始点，蓝线是该类的结果。

我想要实现的是曲线，但是线条连接到立方体就像第一个和最后一个立方体一样，这样的结果（蓝点=原点;橙点=新点）：

public class Curver : MonoBehaviour{
    //arrayToCurve is original Vector3 array, smoothness is the number of interpolations. 
    public static Vector3[] MakeSmoothCurve(Vector3[] arrayToCurve, float smoothness){
        List<Vector3> points;
        List<Vector3> curvedPoints;
        int pointsLength = 0;
        int curvedLength = 0;

        if(smoothness < 1.0f) smoothness = 1.0f;

        pointsLength = arrayToCurve.Length;

        curvedLength = (pointsLength*Mathf.RoundToInt(smoothness))-1;
        curvedPoints = new List<Vector3>(curvedLength);

        float t = 0.0f;
        for(int pointInTimeOnCurve = 0;pointInTimeOnCurve < curvedLength+1;pointInTimeOnCurve++){
            t = Mathf.InverseLerp(0,curvedLength,pointInTimeOnCurve);

            points = new List<Vector3>(arrayToCurve);

            for(int j = pointsLength-1; j > 0; j--){
                for (int i = 0; i < j; i++){
                    points[i] = (1-t)*points[i] + t*points[i+1];
                }
            }

            curvedPoints.Add(points[0]);
        }
        return(curvedPoints.ToArray());
    }
}

以下是我使用该课程的方式：

void OnDrawGizmos(){
    Vector3[] points = Curver.MakeSmoothCurve(toVector3Array(wayPoints), 10f);
    bool ptset = false;
    Vector3 lastpt = Vector3.zero;
    for(int j = 0; j < points.Length; j++){
        Vector3 wayPoint = points[j];
        if(ptset){
            Gizmos.color = new Color(0, 0, 1, 0.5f);
            Gizmos.DrawLine(lastpt, wayPoint);
        }
        lastpt = wayPoint;
        ptset = true;
    }
    if(isCircular){
        Gizmos.DrawLine(lastpt, wayPoints[0].position);
    }

}